KPrGeSe4

ceramic
· JVASP-10884· KPrGeSe4

KPrGeSe4 is a quaternary ceramic compound combining potassium, praseodymium, germanium, and selenium—a rare-earth germanium chalcogenide belonging to the family of materials studied for their unique optical and electronic properties. This is an experimental research material rather than an established industrial ceramic; compounds of this type are investigated primarily for infrared photonics, nonlinear optical applications, and solid-state laser systems where their transparency windows and crystal structure offer advantages over conventional oxides. The combination of rare-earth doping with chalcogenide matrices makes KPrGeSe4 of interest in specialized optoelectronic and sensor applications where mid-to-far-infrared performance is critical.

infrared optics and photonicsnonlinear optical crystalssolid-state laser systemsmid-infrared sensingresearch and development materialsoptical fiber alternatives

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
24.07
GPa—
Poisson's Ratio(ν)
0.2600
-—
Shear Modulus(G)
13.90
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
4.551
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
1.521
eV—
Dielectric Constant (Relative Permittivity)(εr)
13.23
-—
Magnetic Moment(μB)
0.000
µB—
Piezoelectric Modulus(eij)
0.1572
C/m²—
Seebeck Coefficient(S)
-249.4
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)
-1.181
eV/atom—
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.